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Diffstat (limited to 'library/Smarty/demo/plugins/cacheresource.mysql.php')
| -rw-r--r-- | library/Smarty/demo/plugins/cacheresource.mysql.php | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/library/Smarty/demo/plugins/cacheresource.mysql.php b/library/Smarty/demo/plugins/cacheresource.mysql.php deleted file mode 100644 index d8d00ab26..000000000 --- a/library/Smarty/demo/plugins/cacheresource.mysql.php +++ /dev/null @@ -1,162 +0,0 @@ -<?php - -/** - * MySQL CacheResource - * CacheResource Implementation based on the Custom API to use - * MySQL as the storage resource for Smarty's output caching. - * Table definition: - * <pre>CREATE TABLE IF NOT EXISTS `output_cache` ( - * `id` CHAR(40) NOT NULL COMMENT 'sha1 hash', - * `name` VARCHAR(250) NOT NULL, - * `cache_id` VARCHAR(250) NULL DEFAULT NULL, - * `compile_id` VARCHAR(250) NULL DEFAULT NULL, - * `modified` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, - * `content` LONGTEXT NOT NULL, - * PRIMARY KEY (`id`), - * INDEX(`name`), - * INDEX(`cache_id`), - * INDEX(`compile_id`), - * INDEX(`modified`) - * ) ENGINE = InnoDB;</pre> - * - * @package CacheResource-examples - * @author Rodney Rehm - */ -class Smarty_CacheResource_Mysql extends Smarty_CacheResource_Custom -{ - // PDO instance - protected $db; - protected $fetch; - protected $fetchTimestamp; - protected $save; - - public function __construct() - { - try { - $this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty"); - } - catch (PDOException $e) { - throw new SmartyException('Mysql Resource failed: ' . $e->getMessage()); - } - $this->fetch = $this->db->prepare('SELECT modified, content FROM output_cache WHERE id = :id'); - $this->fetchTimestamp = $this->db->prepare('SELECT modified FROM output_cache WHERE id = :id'); - $this->save = $this->db->prepare('REPLACE INTO output_cache (id, name, cache_id, compile_id, content) - VALUES (:id, :name, :cache_id, :compile_id, :content)'); - } - - /** - * fetch cached content and its modification time from data source - * - * @param string $id unique cache content identifier - * @param string $name template name - * @param string $cache_id cache id - * @param string $compile_id compile id - * @param string $content cached content - * @param integer $mtime cache modification timestamp (epoch) - * - * @return void - */ - protected function fetch($id, $name, $cache_id, $compile_id, &$content, &$mtime) - { - $this->fetch->execute(array('id' => $id)); - $row = $this->fetch->fetch(); - $this->fetch->closeCursor(); - if ($row) { - $content = $row['content']; - $mtime = strtotime($row['modified']); - } else { - $content = null; - $mtime = null; - } - } - - /** - * Fetch cached content's modification timestamp from data source - * - * @note implementing this method is optional. Only implement it if modification times can be accessed faster than loading the complete cached content. - * - * @param string $id unique cache content identifier - * @param string $name template name - * @param string $cache_id cache id - * @param string $compile_id compile id - * - * @return integer|boolean timestamp (epoch) the template was modified, or false if not found - */ - protected function fetchTimestamp($id, $name, $cache_id, $compile_id) - { - $this->fetchTimestamp->execute(array('id' => $id)); - $mtime = strtotime($this->fetchTimestamp->fetchColumn()); - $this->fetchTimestamp->closeCursor(); - - return $mtime; - } - - /** - * Save content to cache - * - * @param string $id unique cache content identifier - * @param string $name template name - * @param string $cache_id cache id - * @param string $compile_id compile id - * @param integer|null $exp_time seconds till expiration time in seconds or null - * @param string $content content to cache - * - * @return boolean success - */ - protected function save($id, $name, $cache_id, $compile_id, $exp_time, $content) - { - $this->save->execute(array( - 'id' => $id, - 'name' => $name, - 'cache_id' => $cache_id, - 'compile_id' => $compile_id, - 'content' => $content, - )); - - return !!$this->save->rowCount(); - } - - /** - * Delete content from cache - * - * @param string $name template name - * @param string $cache_id cache id - * @param string $compile_id compile id - * @param integer|null $exp_time seconds till expiration or null - * - * @return integer number of deleted caches - */ - protected function delete($name, $cache_id, $compile_id, $exp_time) - { - // delete the whole cache - if ($name === null && $cache_id === null && $compile_id === null && $exp_time === null) { - // returning the number of deleted caches would require a second query to count them - $query = $this->db->query('TRUNCATE TABLE output_cache'); - - return - 1; - } - // build the filter - $where = array(); - // equal test name - if ($name !== null) { - $where[] = 'name = ' . $this->db->quote($name); - } - // equal test compile_id - if ($compile_id !== null) { - $where[] = 'compile_id = ' . $this->db->quote($compile_id); - } - // range test expiration time - if ($exp_time !== null) { - $where[] = 'modified < DATE_SUB(NOW(), INTERVAL ' . intval($exp_time) . ' SECOND)'; - } - // equal test cache_id and match sub-groups - if ($cache_id !== null) { - $where[] = '(cache_id = ' . $this->db->quote($cache_id) - . ' OR cache_id LIKE ' . $this->db->quote($cache_id . '|%') . ')'; - } - // run delete query - $query = $this->db->query('DELETE FROM output_cache WHERE ' . join(' AND ', $where)); - - return $query->rowCount(); - } -} |